Broke even CCR vs OC fills costs!

[LiteHedded]

Really?

Calculate the cost of a fill of LP 104's with 10/60 in them, I am sure you can take it from there.

It's about 170 cubic feet of Helium per fill, not including bailout gas fills. So about $150 per fill.

100 x 150 = way more than the cost of a rebreather, its 2 rebreathers.

Say you reserve a set of 104's for trimix only and you only need 85 cubic feet per fill, it's about $75/fill.

100 x 75 = $7500. The cost of one good rebreather.

no need to get snippy Jim. aren't you in the keys? you should be upbeat and happy.

are most ccrs really 7500 bucks all-in? genuinely curious. i thought they were closer to 10k plus training

 

[Capt Jim Wyatt]

Sorry you thought I was snippy, not my intent. I am sitting on a beautiful reef as I type this watching scuba divers and some bikini clad females, so I am happy.

Average CCR with training is around $10K, so about 100 OC trimix fills will be about break even.

 

[LiteHedded]

View attachment 424816 Sorry you thought I was snippy, not my intent. I am sitting on a beautiful reef as I type this watching scuba divers and some bikini clad females, so I am happy.

Average CCR with training is around $10K, so about 100 OC trimix fills will be about break even.

300 per year in sensors (right? i'm doing my best to understand ccr stuff) and how many buckets of lime over your 100 dives?
i think people overestimate their rb cost savings, is my point

 

[kelemvor]

no need to get snippy Jim. aren't you in the keys? you should be upbeat and happy.

are most ccrs really 7500 bucks all-in? genuinely curious. i thought they were closer to 10k plus training

I was looking a few years ago at RB's but lost interest. I recall some manual CCR's being in that price range but most eCCR's were $10k-$12k.

 

[LiteHedded]

I was looking a few years ago at RB's but lost interest. I recall some manual CCR's being in that price range but most eCCR's were $10k-$12k.

mine was certainly more than 7500 before training but it had a very expensive H stamped on it. maybe that's not normal?

 

[Capt Jim Wyatt]

$300/year in sensors is about right, could me more.

A keg of sorb is basically $100 for 40 pounds. A scrubber takes about 6 pounds per dive.

OC - when I get home from a dive in fresh water I do nothing to the rig, I leave it in the bed of my pickup truck.

CCR - I spend about 45 minutes cleaning, drying and fiddling with it. Sometimes longer.

But for me personally I think I came out ahead financially and got much longer Bottom times with the CCR.

I would have never taken my OC doubles to 400 fsw - I have taken my CCR several times.

 

[LiteHedded]

$300/year in sensors is about right, could me more.

A keg of sorb is basically $100 for 40 pounds. A scrubber takes about 6 pounds per dive.

OC - when I get home from a dive in fresh water I do nothing to the rig, I leave it in the bed of my pickup truck.

CCR - I spend about 45 minutes cleaning, drying and fiddling with it. Sometimes longer.

But for me personally I think I came out ahead financially and got much longer Bottom times with the CCR.

I would have never taken my OC doubles to 400 fsw - I have taken my CCR several times.

sure. i would have never done 10 hour dives without mine. but cost savings wasn't a big factor in why i went to a breather.
i often leave mine at home for easy ocean trimix diving because (for me) it's not worth all the extra hassle and added risk for a nothing 25 minute exposure

 

[hilljo88]

Plus reg maintenance, tank Viz and hydros. costs You might do some of this yourself but still impute the cost to OC

 

[PfcAJ]

Cost of training, lodging, travel.

It's not as simple as cost of RB and cost of a 10/60 top off. I'd also contend that most dives are really in the 150-240ft range. 10/60 isn't a common OC gas.

 

[RyanT]

Cost of training, lodging, travel.

It's not as simple as cost of RB and cost of a 10/60 top off. I'd also contend that most dives are really in the 150-240ft range. 10/60 isn't a common OC gas.

Even so, seriously, how hard is the math? Let me lay it out. Let's say you spend 10k on the unit and then 4k on training and that includes lodging and food during training (probably high estimates).

Indeed, let's say you are mostly doing moderate dives in the 200ish range and using 18/45 fills on a set of 100 doubles @1 dollar/cu foot.

200 cf x 1 = $200.

For the same dives on RB, figure 23 cf x 1 = $23 (for diluent)
(of course there are fills for pure O2 on the RB and/or OC deco, but those are probably pretty much a wash)

So 200-23 = $217

$177 - $15/dive (for sorb) = $163

So 14,000/163(savings per dive) = 86 dives (rounded)

Add back $300 for sensors

14300/163 = 88 dives (rounded)

Gas prices probably differ a bit, depending on volume and LDS prices, but it's easy to insert those changes. Likewise, overall price of the unit/training/lodging probably different from place to place. Either way, not hard to calculate.